The feature of our ultra-high strength sucker rod is that the rod has a thin compression layer 10-15% at the rod surface that remains under compression even under normal operating tensile loads. 

The induction case hardening sucker rod is manufactured to the API Spec. 11B. The stringent control procedures ensure reliable and long service of the rods to the customers.

Ultra High Strength Sucker Rod is using ultra audio induction quenching technology to further process from the Grade D sucker rod. The metallographic structure is acicular martensite, the crystalline grain is fine and even. After shot- blasting, the rod has higher tensile strength (980~1200 MPa), surface hardness (HRC≥42) and surface residual compress stress (≤-200MPa). Also the rods provide with higher fatigue strength.

Key Benefits

1.     Energy saving through pumping with a lighter string with no compromise in production;

2.     Higher fluid production with existing pumping unit;

3.     Reduction in the size of pumping unit with no reduction in production;

4.     Increase pumps speed for additional production;

5.     Extended service life and cost saving.

 

Chemical Properties, %
Steel	AISI 4130
C	0.26~0.33
Si	0.17~0.37
Mn	0.40~0.70
Cr	0.80~1.10
Ni	≤0.3
Mo	0.15~0.25
Cu	≤0.25
P	≤0.015
S	≤0.015

Mechanical Properties
Yield Strength 0.2% offset, PSI	-
(MPa)	-
Ultimate Tensile Strength, PSI	152,000~170,000
(MPa)	(1050)~(1176)
Rod Size, OD	5/8″, 3/4″, 7/8″, 1″
(mm)	(15.88), (19.05), (22.23), (25.40)
Rod Length	25’, 30’
(m)	(7.62), (9.14)

Heat Treatment

Quenched – Tempered - Surface hardening

*The above values are for general information only. We reserve the right to modify them according to internal specifications and without prior notice.